I'm following this tutorial (to get cloudflare pages working with fauna db), but when I get to the chapter "Testing and deploying the Worker" and try to run wrangler dev (which will run npm run build, which in turn runs worktop build index.js) I get the error message sh: worktop: command not found.

I have double checked that I have followed each step correctly, checked if worktop was present in the node_modules directory (it is) and also tried to install worktop globally (didn't work).

What am I missing here?

Full output of running wrangler dev:

$ wrangler dev     
🌀  Running npm run build

> fauna-demo-workers@1.0.0 build /Users/me/dev/fauna-demo-workers
> worktop build index.js

sh: worktop: command not found
npm ERR! code ELIFECYCLE
npm ERR! syscall spawn
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! fauna-demo-workers@1.0.0 build: `worktop build index.js`
npm ERR! spawn ENOENT
npm ERR! 
npm ERR! Failed at the fauna-demo-workers@1.0.0 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/me/.npm/_logs/2022-01-09T12_54_24_718Z-debug.log
Error: Build failed! Status Code: 1